science test shsh

test

do prokaryotic cells more than one cells?

no they are unicellular organisms.

do eukaryotic cells have more than one cells?

Yes, they can be multicellular organisms.

do plant cells use a cell wall?

yes

what are cilia?

##### are small, hair-like structures on the surface of certain cells that help in movement and sensory functions. They are found in prokaryotic, plant, and animal cells.

what does the cell membrane do?

the ##### is a wall that surrounds the cell. found in both prokaryotic and eukaryotic cells.also controls what comes in and gets out of the cell. They are found in prokaryotic, plant, and animal cells.

what is the cytoplasm?

The ##### is everything between the cell membrane and the nucleus or nucleoid. It is a gel-like substance. The fluid portion of the cytoplasm is called the cytosol.

what does the chloroplast do?

the ##### is a organelle that conducts photosynthesis and contains a green pigment.found in only plant cells

what does the Golgi body/apparatus do?

the ##### packs, organizes and ships off things. found in plant and animal cells.

what is the smooth endoplasmic reticulum or for short the smooth ER

the ##### Makes enzymes for specialized tasks such as calcium regulation and detoxification.Also creates steroids for the cell membrane. found in plant and animal cells.

what is the rough endoplasmic reticulum or for short the rough ER

Its surface contains ribosomes . Ribosomes help make proteins, and the Rough ER serves as a roadway for the proteins to travel to different parts of the cell. found in plant and animal cells.

what are ribosomes

###### are made up of proteins and RNA.

They are the site of protein synthesis. found in prokaryotic and eukaryotic cells

what are Vesicles?

they are membrane-bound “containers” that are

used to transport various substances within the cell. found in plant and animal cells

what are mitochondria

###### are organelles

surrounded by a double membrane that

store energy as ATP.(the power house of the cell)

what is the nucleus

the ##### is a central, membrane enclosed organelle

found in all eukaryotic cells.

• It is the largest organelle found in animal cells.

• The nucleus contains DNA, a genetic code that tells other parts

of the cell what to do.

• It is surrounded by the nuclear envelope, and contains tiny

pores (holes) called “nuclear pores”) is in all cells

what is the large central vacuole

The ##### is a large water storing organelle found in

plants. only in plant cells

what is the vacuole (not the large central vacuole from plant cell)

the ##### is an organelle that stores waste and food. not in prokaryotic cells

what is the flagella

these are made up of microtubules that create a whip-like movement to propel cells forward. Prokaryotes can have multiple of these.

what is the cilia

these are tiny hair-like projections that can surround some cells and flutter to create movement.

what is the cytoskeleton

The ##### is a network of protein fibres which

maintains cell shape, as the name implies. The cytoskeleton

also plays a role in cell division and cellular transport. found in plant, animal, and eukaryotic cells

what is the lysosome

##### are a specialized vesicles that contain

powerful enzymes to help digest old cell parts and

foreign particles. in plant cells and animal cells

what are the 10 characteristics of living things.

metabolism, are organisms, contain DNA, Use Energy, React to Stimuli, Grow, Reproduce, Adapt, Take in Nutrients, excretion, Homeostasis

how do living things take in nutrients.

by eating food/metabolism

what is metabolism

##### is when living things eat food

what are organisms

An ##### is any living thing that can carry out life processes such as growth, metabolism, response to stimuli, and more.

what is DNA provide

##### provides the instruction manual for all living things.

how do living things Use Energy and how do they get it.

living things use ##### by doing work. Humans get this from food, while plants get it from the sun.

what is Stimuli?

A ##### is something you can detect with one or more of your 5 senses. Examples include a ringing phone, a stinky smell, a sugary taste, or a hot pan.

in what ways do living things grow.

living things ##### in many ways such as grow in size and change as they develop and learn.Living things also heal if they are injured.

what is reproducing

##### is the process of spawning new life from existing life. Some species are capable of cloning themselves through a process known as asexual reproduction.

why do living things adapt

In order to survive, living thing must change as their environment also changes.

what is Homeostasis

##### is the ability of all living things to keep themselves in balance.

what are three ways humans have adapted

genetic, physiological , and behavioural changes

when did the cell theory arise?

the cell theory arose when cells were first seen under a microscope in 1665

why are cells called cells?

they are called cells because Robert Hook thought they looked like little rooms

were Schleiden and Schwann friends

yes they were friends